Primordial black holes from an inflationary potential valley

被引：13

作者：

Gu, Bao-Min ^{[1
,2
]}

Shu, Fu-Wen ^{[1
,2
,3
]}

Yang, Ke ^{[4
]}

Zhang, Yu-Peng ^{[5
,6
]}

机构：

[1] Nanchang Univ, Dept Phys, Nanchang 330031, Peoples R China

[2] Nanchang Univ, Ctr Relativist Astrophys & High Energy Phys, Nanchang 330031, Peoples R China

[3] Yangzhou Univ, Ctr Gravitat & Cosmol, Yangzhou 225009, Peoples R China

[4] Southwest Univ, Sch Phys Sci & Technol, Chongqing 400715, Peoples R China

[5] Lanzhou Univ, Lanzhou Ctr Theoret Phys, Sch Phys Sci & Technol, Key Lab Theoret Phys Gansu Prov, Lanzhou 730000, Peoples R China

[6] Lanzhou Univ, Inst Theoret Phys, Res Ctr Gravitat, Lanzhou 730000, Peoples R China

来源：

PHYSICAL REVIEW D | 2023年 / 107卷 / 02期

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

D O I：

10.1103/PhysRevD.107.023519

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Primordial black holes (PBHs) could be formed if large perturbations are generated on small scales in inflation. We study a toy inflation model with a local minimum. The curvature perturbations are enhanced when the inflaton passes through the local minimum, with more efficient amplification rate than that of quasi-inflection point inflation, leading to the production of PBHs on small scales. The PBHs could comprise the total dark matter in the mass window 1016-1020 g.

引用

页数：8

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